diff --git a/fhem/contrib/99_CT.pm b/fhem/contrib/99_CT.pm
new file mode 100644
index 000000000..56175df2c
--- /dev/null
+++ b/fhem/contrib/99_CT.pm
@@ -0,0 +1,97 @@
+# $Id$
+package main;
+
+use strict;
+use warnings;
+
+# define items and where/how they can be found
+my %handles = (
+
+   # for each item define something like this:
+   # ITEM     => [
+   #   'path containing the data we need',
+   #   'regular expression matching the (bits) we need',
+   #   sub { to process the bits found by the regex },
+   # ],
+
+   # Clock frequency of CPU in Hz, e.g. 800000
+   CPU0FREQ  => [
+      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq',
+      '(\d+)',
+      sub { shift },
+   ],
+
+   # Clock frequency of CPU in Hz, e.g. 800000
+   CPU1FREQ  => [
+      '/sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq',
+      '(\d+)',
+      sub { shift },
+   ],
+
+   # MAC address of wired ethernet connection
+   LMAC      => [
+      '/sys/class/net/eth0/address',
+      '(.*)',
+      sub { shift },
+   ],
+   
+   # MAC address of wireless ethernet connection
+   WMAC      => [
+      '/sys/class/net/wlan0/address',
+      '(.*)',
+      sub { shift },
+   ],
+   
+   # Serial number
+   SERIAL   => [
+      '/proc/cpuinfo',
+      'Serial\s+:\s+(\S+)\s*$',
+      sub { shift },
+   ],
+   
+   # Revision id
+   REV      => [
+      '/proc/cpuinfo',
+      'Revision\s+:\s+(\S+)\s*$',
+      sub { shift },
+   ],
+   
+);
+
+sub CT {
+   my $item = uc(shift); # not case sensitive
+   my $value = undef;    # result is undef unless success
+   
+   # if we know how to find the requested item
+   if ( exists $handles{$item} ) {
+   
+      # open file
+      if ( open my $fh, $handles{$item}[0] ) {
+         my $regex = $handles{$item}[1];
+         while ( <$fh> ) {
+         
+            # regex matches: process and set resulting value
+            /$regex/ and $value = &{$handles{$item}[2]}($1) and last;
+         }
+         close $fh;
+      }
+      
+      # complain: failed to open file
+      else {
+         warn "Could not read $item: $!\n";
+      }
+   }
+   
+   # complain: don't know requested item
+   else {
+      warn "Don't know how to find $item\n";
+   }
+
+   return $value;
+};
+
+sub CT_Initialize($) {
+	my ($hash) = @_;
+}
+
+1;
\ No newline at end of file